// Default constructor
    }

    /** Logger instance for this class. */
    private static final Logger logger = LogManager.getLogger(CrawlerStatsHelper.class);

    /** Key used to store the begin timestamp in statistics objects. */
    private static final String BEGIN_KEY = "begin";

    /** Logger instance specifically for outputting crawler statistics. */
    protected Logger statsLogger = null;

        if (httpClient == null) {
            return;
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Closing HTTP client...");
        }
        if (connectionMonitorTask != null) {
            connectionMonitorTask.cancel();
            if (logger.isDebugEnabled()) {
                logger.debug("Connection monitor task cancelled");
            }
        }

		SSHHandshakeDeadline: 2 * time.Minute,
		Logger:               new(sftpLogger),
		SSHConfig:            sshConfig,
		HandleSFTPSession:    handleSFTPSession,
	})
	if err != nil {
		logger.Fatal(err, "Unable to start SFTP Server")
	}

	err = sftpServer.Listen()
	if err != nil {
		logger.Fatal(err, "SFTP Server had an unrecoverable error while accepting connections")
	}

import org.mockito.junit.jupiter.MockitoExtension;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Base test class providing common test infrastructure and utilities.
 * All test classes should extend this to ensure consistent test setup.
 */
@ExtendWith(MockitoExtension.class)
public abstract class BaseTest {

    protected final Logger logger = LoggerFactory.getLogger(getClass());

    @BeforeEach

 *   <li>Column names as metadata</li>
 *   <li>Configurable encoding and row limits</li>
 * </ul>
 */
public class CsvExtractor extends AbstractExtractor {
    /** Logger instance for this class. */
    private static final Logger logger = LogManager.getLogger(CsvExtractor.class);

    /** Default encoding for CSV files. */
    protected String encoding = Constants.UTF_8;

    /** Maximum number of rows to extract. */

 * </p>
 *
 * <p>
 * It depends on CrawlerContainer to get ExtractorFactory.
 * </p>
 */
public class TextTransformer extends AbstractTransformer {
    private static final Logger logger = LogManager.getLogger(TextTransformer.class);

    /**
     * The crawler container.
     */
    @Resource
    protected CrawlerContainer crawlerContainer;

    /**
     * The name of the charset.

public class BooleanQueryCommand extends QueryCommand {
    /**
     * Default constructor for BooleanQueryCommand.
     */
    public BooleanQueryCommand() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(BooleanQueryCommand.class);

    @Override
    protected String getQueryClassName() {
        return BooleanQuery.class.getSimpleName();
    }

    @Override

import jakarta.annotation.Resource;

/**
 * API action for admin scheduler management.
 */
public class ApiAdminSchedulerAction extends FessApiAdminAction {

    /** The logger for this class. */
    private static final Logger logger = LogManager.getLogger(ApiAdminSchedulerAction.class);

    // ===================================================================================

import org.slf4j.Logger;

@Named
@Singleton
@Deprecated(since = "4.0.0")
public class ToolchainManagerFactory {

    private final Lookup lookup;
    private final Logger logger;

    @Inject
    ToolchainManagerFactory(Lookup lookup) {
        this(lookup, null);
    }

    protected ToolchainManagerFactory(Lookup lookup, Logger logger) {
        this.lookup = lookup;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.lastaflute.core.direction.CurtainFinallyHook;
import org.lastaflute.core.direction.FwAssistantDirector;

/**
 * The hook for curtain finally.
 *
 * @author jflute
 */
public class FessCurtainFinallyHook implements CurtainFinallyHook {

    private static final Logger logger = LogManager.getLogger(FessCurtainFinallyHook.class);

    @Override